====== app.diagrams.net ======


----

  * **[[http://app.diagrams.net |app.diagrams.net]]** 
  * After creating a new diagram, click on the (More Shapes…) button on the left panel
  * Find the option for (Other -> Electrical) and select it.
  * Use the left panel to select circuit elements, click & drag elements onto the canvas.
  * To connect elements, make sure the elements aren’t selected and click on a blue 'x' on the image (it should have a green circle around it when you hover over a connector)
  * To rotate elements, use the right panel -> Arrange
  * Op-amps and ground are under (Electrical/Misc)

====== Circuitikz (LaTeX package) ======


----

  * **https://www.ctan.org/pkg/circuitikz**
  * Online manual is here: http://texdoc.net/texmf-dist/doc/latex/circuitikz/circuitikzmanual.pdf
  * Coordinates are (right,down) for (x,y)
  * Some (downloadable) online examples are here: http://texample.net/tikz/examples/circuitikz/
  * Not recommended if you aren't writing your reports in LaTeX

====== Falstad ======


----

  * **http://www.falstad.com/circuit/**
  * Use the top menu (circuits -> blank circuit)
  * Right-click on the canvas to bring up the circuit component menu
  * Wires, resistors are under the default menu
  * Capacitors are under (passive components -> Add Capacitors)
  * Voltage sources and ground are under (Inputs and sources)
  * Op-amps are under (Active building blocks -> Add op-amp)

====== Digikey Schemeit   ======


----

  * **https://www.digikey.com/schemeit/**
  * Under the left panel, (Schematic symbols) is where to find the symbols we use in class.
  * Resistors are under (Passives -> Resistors)
  * Voltage supplies and ground are under (Ports)
  * Voltmeters/Ammeters are under (Test equipment)

====== KiCad  ======


----

  * **https://www.kicad.org/download/**
  * Free, but requires local installation
  * To get started:
    * Create a New Project
    * Edit the schematic (top icon on the left)
    * Use the ''Place Symbols'' button to select an element
      * You'll very likely need the search function to find things
    * Use the ''Draw Wires'' button to connect elements
    * Use the ''Place Directive Labels'' tool to add labels to locations
    * Double-click on an element to edit its properties
      * ''Reference'' is usually for the name of something
      * ''Value'' is usually for physical parameters (resistance, capacitance, etc)
  * KiCad is capable of simulating circuit behavior, but that is not part of the course.